Fix documented slot name of eieio-instance-tracker class

* doc/misc/eieio.texi (eieio-instance-tracker): The code has the slot
  name as `tracking-symbol', not `tracker-symbol'.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/misc/eieio.texi b/doc/misc/eieio.texi
index 6c030fcfca9..3943c544c7d 100644
--- a/doc/misc/eieio.texi
+++ b/doc/misc/eieio.texi
@@ -1285,9 +1285,9 @@ This class is defined in the package @file{eieio-base}.
 Sometimes it is useful to keep a master list of all instances of a given
 class.  The class @code{eieio-instance-tracker} performs this task.
 
-@deftp {Class} eieio-instance-tracker tracker-symbol
+@deftp {Class} eieio-instance-tracker tracking-symbol
 Enable instance tracking for this class.
-The slot @var{tracker-symbol} should be initialized in inheritors of
+The slot @var{tracking-symbol} should be initialized in inheritors of
 this class to a symbol created with @code{defvar}.  This symbol will
 serve as the variable used as a master list of all objects of the given
 class.